Twelve year old Li Wan (Zhang Xueying) has lost her mother long ago. When she grew up, her father remarried. Not long after, Li played with a half brother. This series of events lead to adolescent Li play has become strange and silent, in order to appease and divert the daughter inside depressed, father bought a lovely dog, hoping it can replace himself with his daughter. Li Wan and the puppy soon established a deep affection, she named the puppy “Einstein””. Unfortunately, an accident, Einstein lost, under a huge blow, Lee with his wayward will play the whole family jiquanbuning exhortations. After the father sent Lee Wanyi puppy to replace Einstein, but Li Wan knew that everything changed, he could not go back to the past, compromise, seems to be the only choice.